Samsung on the verge of selling 10 millionth Galaxy S 4 smartphone

It hasn't even been on sale for a month, but already the Galaxy S 4 is about to sell its 10 millionth unit.

Shin Jong-kyun, Samsung's co-chief executive, said the company believes the GS4 could hit that mark as soon as next week, according to the Korea Times.

"It is selling much faster than the previous model S3,” Jong-kyun said on Thursday in Seoul. Samsung's Galaxy S III was one of the most popular smartphones to hit the market before the company rolled out the successor, GS4.

Last year Samsung was also quick to hit the 10-million mark with the Galaxy S III, but that took all of two full months. The GS4 is on track to be Samsung's fastest-selling smartphone of all time.

"The S4 will be Samsung’s first 10 million seller device less than a month after its official debut,” the co-CEO said, according to the report.

The popular phone debuted in various parts of the world in late April. It is currently available in the U.S. from AT&T, Sprint and T-Mobile. Verizon will begin selling its version next Thursday.

Users can purchase the phone from AT&T for $200 with a two-year contract. T-Mobile sells the phone for a $150 down payment followed by 24 payments of $20. Sprint sells the phone for $250 with a two-year contract, as will Verizon, which will also offer $50 off with a mail-in rebate.